Which type of inspection is required every 24 calendar months for IFR operations?

The required inspection every 24 calendar months for IFR operations is the Static System Inspection. This type of inspection specifically addresses the accuracy and functionality of the pitot-static system and the altimeters used in IFR conditions. Ensuring that these systems are functioning properly is crucial for maintaining safe operations in instrument meteorological conditions, where pilots rely heavily on these instruments for navigation and altitude information.

The Static System Inspection is mandated by aviation regulations and helps to verify that altimeter settings and pressure readings are accurate, which is essential for safe flight operations. Additionally, this inspection contributes to the overall airworthiness of the aircraft by preventing potential issues that could arise from faulty instrumentation.